DEFINITE, DEFINITELY, DEFINITIVE
ADJECTIVES
1608 — DECRETAL decisive, definitive → obs.
1847 — SURE AS SHOOTING certain; definite → US sl.
..L19 — COPPER-PLATED absolute, certain, definite → US sl.
..L19 — SOLID definite
1900 — MORAL certain, definite → sl.
1930 — SURE AS YOU’RE A FOOT HIGH certain; definite → US sl.
1940 — SURE AS GOD MADE LITTLE GREEN APPLES certain; definite → US sl.
ADVERBS
1533 — MARKLY definitely → Sc. obs.
1614 — SIGNANTER expressly, distinctly, definitely
1796 — SURE AS GOD MADE (LITTLE) APPLES certainly, definitely, without a doubt
1884 — BLEEDING WELL certainly, definitely → UK sl.
..L19 — DAMN WELL certainly, assuredly, definitely, very much
..L19 — JUST absolutely, definitely, very → sl.
1910 — BY THE CLOCK absolutely, definitely → US sl.
1940 — DEF definitely → sl.
1952 — BY A LONG WAYS by far; far and away → Amer. dial.
1960 — DEFFO — DEFO definitely → sl., orig. Irish usage
1970 — DEAD-SET definitely, certainly → Aust. sl.
INTERJECTIONS
1997 — NO DIGGETY! an exclamation implying ‘without question’ → sl.
Lexicophilia 